Published in Scientific Papers. Series B, Horticulture, Vol. LXVII, Issue 1
Written by Vedat PİRİNÇ, Erhan AKALP
As a result of the global drought, improper irrigation and excessive fertilizer applications; salt accumulation in agricultural lands can cause production to stop. It is not possible to wash the soil in large lands and it is a difficult practice to rehabilitate the salty soils formed. In order to regain these soils for production, researchers have different applications; rotation and fallow practices, different irrigation methods, using of fertilizers and plant growth regulators etc. can be performed. In addition, with the changing and developing technologies, studies on production models that are not dependent on soil (soilless farming, rapid plant cultivation with LED lights in different aggregate cultures in artificially controlled environments) are being made on new models every day. This study was carried out to determine the effect of salicylic acid applications on pepper seeds and seedlings in saline conditions. Çermik pepper genotype, which is a local variety belonging to Diyarbakir, was used as plant material. Commercial rock salt was used as NaCl. While the pepper seeds were treated by keeping in 0.1mM and 0.5mM salicylic acid solution dosages, the seedlings were treated in pots containing the same doses of water culture + Hoagland nutritional solution. In order to identify the physiological and morphological changes in control and subjected to treatment plants, Chlorophyll-a, Chlorophyll-b, Total Chlorophyll content, Caretonoid content, 0-5 damage index of plants, plant fresh and dry weight (without roots), root fresh weight, plant fresh weight, leaf fresh weight, root length, stem length and stem diameter values were measured at the end of the research. When the statistical data obtained at the end of the study were examined, it was determined that both doses of Salicylic Acid increased the resistance of the plant to NaCl compared to the untreated seedlings. Furthermore, it has been determined that the application of 0.1 and 0.5mM doses of salicylic acid to the seeds and the subsequent application of SA to these seeds increases the resistance to NaCl that will be given to the environment.
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